Pete your graph looks like poo...
And the graph posted for this guys seems to have the right basic shape.
If you really wanna see if it's the clutch just do the 4th gear clutch test which I can't remember exactly how to do right now.
04 Subaru WRX "Eurosport bling bling fast and furious tokyo drift"
"They have diarrhea of the mouth, and constipation of thought"
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